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Table 2 Construction of variables and their coding

From: Neighborhood and physical activities of Portuguese adolescents

Questions cod.
Sports practice (alpha: 0.6)
a) Football, b) Basketball, c) Gymnastics, d) Volleyball, e) Swimming, f) Cycling/mountain biking, g) Handball, h) Athletics
0-1
(0 - no practice, 1-practicing)
Sports (KMO: 0.8):
- "Indoor": b) Basketball, c) Gymnastics, d) Volleyball, g) Handball.
- "Outdoor": a) Football, f) Cycling/mountain biking, h) Athletics
0-1
(0 - no practice, 1-practicing)
Characteristics of the neighborhood (KMO: 0.7)
- Social characteristics: a) Do people get along well and speak to each other?; b) Is it safe for children to play in the street during the day?, c) Can you trust the people of the area?; f) Is there often violence and theft?
- Physical Characteristics: d) Are there good places to spend your free time?; e) Are there many places for entertainment in the evening? g) Is it a beautiful area? i) Do you have good public services (health center, youth center, etc.)?
0-1
(0- no; 1- yes)